The main purpose of our paper is to extend the study presented by Johnson et al. (2020) [1]}: they considered a network of Facebook pages involved in the vaccination debate, labelled as pro-vaccines, anti-vaccines or neutral. In their study, an anti-vaccines overcome is predicted in few years. We adopt a comprehensive approach, studying the effects of opinion dynamics on the static network, modelling the behaviour of the undecided population in a news spread. As an output of our study, we want also to suggest some strategies that is more likely to succeed to restrain anti-vaxxers convincing the undecided.
